Garbage-crematory.



0. M. SHANNON. GARBAGE GREMATORY, APPLICATION FILED APB.. 30,1909, I

Eatented July 19, 19.10.

@wi/tween e o nniarin Silit-HAGE-CSELETLLJ'RY.

Application filed April 3G,

Specillcetion. of

limitent-ed laos. serial no. essaie..

To all whom it may concern:

Be it known that l, @nella M. SHANNON, a citizen of the United States, residing ai New Rochelle, in the county of Ylffcstchester and State of New York, have invented cer tain new and useful linjoroveinei'its in telarbage-Creniatorics, et which the following` a full, clear, and exact description.

This invention relates to Crematories or furnaces adapted to burn and dispose oit refuse of various sorts.

Almost every `torni oli' human activity is attended by the production of more or .less waste or refuse material, which. must be di. s posed of. its examples may be .mentioned the refuse and litter troni otiice buildings and hospitals, the scraps and garbage in private dwellings, and the useless rubbish and shavings and. general reiuse many manufacturing processes. Such material is ordinarily carted away, but as most olit 'is combustible, a considerable economic saving would result by burningr it Where it orig" nated. Burning the refuse avoids iirst, the trouble of storing it up for subsequent moval, second the expense of subsequent re moval and carting, and third, the unsanitarj7 evil, and in some cases actual danger, olf retaining' and storing unwholesorne waste and garbage for periods of greater or less duration in residences. lf the garbage can be burned easily, quickly and cheaply o. premises Where it is produced, it that this method niust supersede many cases the usual plan oi' carting it away to a point of cremation or disposal.

In the drawings: Figure l is a vertical sectional View of a garbage creniatory om bodying the principles of my iin/eration; Fig. 2 is a horizontal or transverse sectional view of the saine.

Referring to the drawings in which liiie parts are designated by the same retcrcnce' sign, l designates the body or casi g2; a furnace. This may be constructed oit the usual metallic shell 2 lined with tire lirici; or refractory composition and having a door 4l through which garbage or retuso is fed. l. have illustrated a hinged hopper-like door capableof closing tightly in normal use, but adapted lo be drawn open to torni a sort of receiving chute for the garbage and material, when desired. The furnace has a central consumption chamber 5 in which the combustion ofthe garbage takes place. This be necessary. Ordinary garbage, however,

is less combustible thanpaper waste and could not be consumed in this simple Way a in the absence ot other means for promoting the combustion. For example, wot vegetable refuse, andthe dirt and d" sweepings demand special treatment. coi-dance with my present invention, vide means initially str-,ing and sequently promoting the action or il' nace. This .means is not only ed We the ellicicnt combustion rc fu ha is tui-ther adapted to prei ierence in the working due the grate or the dripping of consider...) iuiantities ot water from the garbage. eren the packing solid/oi il" i entire mass in the. consumption chan?V s provide a, burner Si, pret., p burner, beneath the grate i against which the llame of the burner is directed. rlhis burner is not arranged diri tly beneath the holes ot' grate T, being?,` located out olf vertical 9o linenzeut 'with said ,tirate opcninos, but flame is nevertheless caused to A the entire under surface of the tratt ivardly through. the grate openings t' are not clogrired up by the garbage. to secure these results l provide a tlue nine .lll exclasively for the burner and this burner tluc pipe or opening l'4 ally oiiset with respect to the h other llame producing` means. loo a. liow ol the hot llame and ,er s insti.-

across the lower exposed por -on ot' the grate. ln traversing this underside' o the grate the burner thune is ot course suelteil ui' through the `:nate openings ii th ai not 10o clogged. rFliese flames, sucked. through. th openings 8 of the grato in this way, th themselves un 'ard lhrou3h the inlerslices' ot the garbage mass, ig'niling those portions which are freely conilmstible, and drying, 'llo vheat of the glowing garbage has restored the nat-v the furnace or grate.

liiames is increasinglyT augmented by the heat from' the,s.garbage masses, which are .tirst dried and. partly carboniued, thereupon ig,-

Aniting and furnishing an intense heat from their own combustion. It' in the progress of rthe action the garbage mass settles down on the grate and clogs up the openings thereof, the burner gases still have a free path of es cape through the flue l0 until the combined the burner and the combustion of ural draft through the grate openings.

- As practical features of' construction I have illustrated a perforated burner tube ll of circular transverse section and generally square outline corresponding to the shape of I prefer to make the burner in two U-shaped halves or sections, abutting together to form a square or rectangle. At some point along the length of each of these halves or sections and beneath the same, there is formed an extension l2 in which a gas pipe 13 delivers, the extension having an air inlet 1.4 thereby constituting a Bunsenburner. The burner perforations 15 are located on an upper inside zone or face of the burner tube so as to direct the tiames radially inward 'beneath the grate as much as possible.

construction, thereby causing the burner flame to uniformly traverse the entire under portion of the grate. The flue is shown bent to one side in the drawing, but may extend straight upward if desired. I do not, of course, desire to be limited or restricted to a gas orto a Bunsen burner. Any fire or fuel bed which produces a fiume, will answer, the only important requirements being those first referred to relating to the location of the burner with respect to the grate openings and with respect to the iiue pipe for the burner gases.

It will be.observed in the drawings that the grate does not have a flat upper surface, but presents an inclined ace to the garbage which rests thereon. Every point of the grate therefore drains in a definite direction outwardly toward a common peripheral gutter 18. Around each hole 8 of the grate there is formed a flange 19 which effectively prevents any fluid streams on the grate sur face from finding an exit through said grate openings. The water and drippii'igs from wet garbage are thereby mostly carried to the gutter. This is found to be practically advantageous because water and ftuid which collect in the gutter are readily evaporated by the close proximity to the burueis, while any Water that happens to pass through the openings in the grate will fall into the pit below and not lodge upon and thus choke the burner. If desired, an outlet may vbe The flue pipe l0 extends i -from the central portion of the grate in this eeaeee provided for the gutter 18, but it will be found in practice that such outlet is unnecesl sary, the evaporation taking care ofany liquid which collects in the gutter.

Below the grate 7 there is the usual ash pit or pan 20 to collect the connninutedincinerated products of 'combustion which none of which are in the least objectionable in the atmosphere.

I regard this crematory furnace as successful mainly on the ground that it incinerates the garbage without throwing ofi' noxious gases and that by reason of the flue 1 0 or its heat can never be suppressed. I regard the successful combustion as due to the fact that I have virtually combined a furnace and a retort in one. The device constitutes a retort in the sense that it hasa chamber heated by Van exterior burner or fire. This action is real and not merely theoretical since the grate is of thin heat conducting metal and actually becomes red hot in use. But besides being in every sense a retort, the present crematory is also a furnace since the ilame passes through the mass and furthermore it is a furnace lin which the air supply is heated, which as is Well known, always produces a far more intense and thorough combustion than 'when the air supply is cold.

What I claim is :k v

l. In .a garbagel crematory, a chamber adapted to receive garbage, a grate at the bottom of said chamber, an exit ue communicating with the space below the grate, and a gas burner having .jets impinging against the Vgrate'at'points remote from the exit flue, whereby the flame and products of combustion travel across' the under tace of the grate in direct contact therewith.

2. In a garbage crematory, a chamber adapted to receive garbage, a grate at the bottom of said chamber, an exit flue communicating with the space below -said grate, and a gas burner shielded by the grate from any drippings and having jets impiuging against the grate at points remote from the exit iiuc, whereby the flame and products of combustion travel across the under face of the grate in direct contact therewith.

In a garbage crematory, a chamber adapted to receive garbage, a grate at the equivalent the flame or source of y eeuwse gra-te at points laterally remote `from the 'opening of said supplemental ue into the space'below the grate.

4.,-111` a garbage crematory,. ha chamber- ,5 adapted to reeelve garbage, a grate having adapted to receive garbage, a grate having 5.- In agarbage icrematory, a chamber j upwardly flanged perforations and' located at the bottom of said chamber, an exit flue I communicating with the space below the grate, and a gas burner, having jetsimplnging against the grate at points/remote from the exitue, whereby the flame and products of combustion travel across the 1,111- der face of the grate in direct Contact therewlth.

^ In Witness whereof, I sub-scribe my signature, in the presence of two witnesses.'

OSCAR M. SHANNON. Witnesses:

VVALDO M. CHAPIN,

WILLIAMAC. LARY. 

